* Rename all Rgba instances to Rgb.
* Remove alpha value from the RGBA Matrices and apply the 4x4 matrix
only to the R, G, B channels.
* Restore the alpha from the input unchanged.
PiperOrigin-RevId: 467208888
This allows the GlEffectsFrameProcessor to later handle HLG and PQ
differently, or limited and full color range differently.
No functional change intended in this CL.
PiperOrigin-RevId: 466070764
* Add RgbaMatrix interface implementation.
* Add Builder class for easy adjustments.
* Adjust existing RgbaMatrixPixelTests to use new RgbAdjustment class.
PiperOrigin-RevId: 465545429